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Add OF1.4 desc stats request and reply message support

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Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
This commit is contained in:
Simon Horman 2014-01-29 12:05:53 +09:00 committed by FUJITA Tomonori
parent fd98c4a225
commit 4a52daee65
1 changed files with 82 additions and 0 deletions
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82
ryu/ofproto/ofproto_v1_4_parser.py
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@ -788,6 +788,88 @@ class OFPMultipartReply(MsgBase):
return msg
class OFPDescStats(ofproto_parser.namedtuple('OFPDescStats', (
'mfr_desc', 'hw_desc', 'sw_desc', 'serial_num', 'dp_desc'))):
_TYPE = {
'ascii': [
'mfr_desc',
'hw_desc',
'sw_desc',
'serial_num',
'dp_desc',
]
}
@classmethod
def parser(cls, buf, offset):
desc = struct.unpack_from(ofproto.OFP_DESC_PACK_STR,
buf, offset)
desc = list(desc)
desc = map(lambda x: x.rstrip('\0'), desc)
stats = cls(*desc)
stats.length = ofproto.OFP_DESC_SIZE
return stats
@_set_stats_type(ofproto.OFPMP_DESC, OFPDescStats)
@_set_msg_type(ofproto.OFPT_MULTIPART_REQUEST)
class OFPDescStatsRequest(OFPMultipartRequest):
"""
Description statistics request message
The controller uses this message to query description of the switch.
================ ======================================================
Attribute Description
================ ======================================================
flags Zero or ``OFPMPF_REQ_MORE``
================ ======================================================
Example::
def send_desc_stats_request(self, datapath):
ofp = datapath.ofproto
ofp_parser = datapath.ofproto_parser
req = ofp_parser.OFPDescStatsRequest(datapath, 0)
datapath.send_msg(req)
"""
def __init__(self, datapath, flags, type_=None):
super(OFPDescStatsRequest, self).__init__(datapath, flags)
@OFPMultipartReply.register_stats_type(body_single_struct=True)
@_set_stats_type(ofproto.OFPMP_DESC, OFPDescStats)
@_set_msg_type(ofproto.OFPT_MULTIPART_REPLY)
class OFPDescStatsReply(OFPMultipartReply):
"""
Description statistics reply message
The switch responds with this message to a description statistics
request.
================ ======================================================
Attribute Description
================ ======================================================
body Instance of ``OFPDescStats``
================ ======================================================
Example::
@set_ev_cls(ofp_event.EventOFPDescStatsReply, MAIN_DISPATCHER)
def desc_stats_reply_handler(self, ev):
body = ev.msg.body
self.logger.debug('DescStats: mfr_desc=%s hw_desc=%s sw_desc=%s '
'serial_num=%s dp_desc=%s',
body.mfr_desc, body.hw_desc, body.sw_desc,
body.serial_num, body.dp_desc)
"""
def __init__(self, datapath, type_=None, **kwargs):
super(OFPDescStatsReply, self).__init__(datapath, **kwargs)
@_set_stats_type(ofproto.OFPMP_PORT_DESC, OFPPort)
@_set_msg_type(ofproto.OFPT_MULTIPART_REQUEST)
class OFPPortDescStatsRequest(OFPMultipartRequest):